Dog card holder



FIG. 1 is a left side view of a dog card holder showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front top right perspective view thereof; and,

FIG. 4 is a rear top left perspective view thereof.

The card in broken lines is included for the purpose of illustrating an article in the environment that forms no part of the claimed design. 

CLAIM The ornamental design for a dog card holder, as shown and described. 